9 (1 point) In economics, cost is measured as ________, and benefit is measured as ________. Question 9 options: A) the amount of money that you pay on the margin; the amount of money that you receive on the margin B) what you are willing to pay on the margin; what the government pays you when you are unemployed or retired C) the amount of money that you pay for something; the amount of money that someone else is willing to pay you D) what you must give up to get something; what you are willing to give up to get it